Alloy Release Postponed by One Week

Unfortunately, we have had to take the decision to postpone this week's Alloy release by a week. The December update of Alloy will now be applied to the servers and made available through the respective mobile app stores on December 8th 2022.

We would like to apologise for any inconvinience this has caused☹️.

Removal of Access Policies


Alloy’s robust Permissions system gives you fine control over who has read/write access to most of the elements within your Alloy database (e.g. designs, layers, workflows).

To take this a step further, we introduced Access Policies. These are simple rules defined per design/interface, which ensure that users can only access items that can be traced back to them. For example, making job items only accessible to users who are members of the job’s allocated team.

While Access Policies work well in principle, the current implementation unfortunately comes with too much of a performance cost.

Therefore, Access Policies will be removed in the next Alloy release, to be replaced with a better implementation at a later date.

Who will be affected?

No active customers are currently using this feature, so we expect its removal to have zero impact.


The /api/access-policy/ endpoints will be removed from the API. Any remaining access policies will be deleted.

Expected Release Date

23rd February 2023 as part of the Alloy v2.44 release.

Removal of old API key mechanism ๐Ÿ”‘


Back in December 2021, we announced that the mechanism for API keys would be changing.

In summary, API keys would no longer be generated automatically for every user, so new API keys must be generated on demand. Additionally, these new API keys must be passed using the OAuth 2.0 Bearer token format. For full details, please see the previous New API Key Management announcement.

These changes were implemented on 13th January 2022, with the old API keys remaining valid for a year.

Therefore, this is to remind everyone that the old API key mechanism will be removed in January 2023!

Who will be affected?

Any user or integration that still uses an old API key to communicate with the Alloy APIs.


As of the release date below, old API keys that were created before 13th January 2022 will no longer be valid.

Additionally, the /api/user/me endpoint (Swagger/ReDoc) will no longer include the old apiKey property in its responses.

To learn about the new endpoints for managing API keys, please see the previous New API Key Management announcement.

How can I check my API key?

The simplest way to check if your API key is "old" or "new" is to consult your code. Does it pass the API key in the OAuth 2.0 Bearer token format (RFC 6750)? If so, your API key is new!

Alternatively, you can use the GET /api/user/me endpoint (Swagger/ReDoc) before the release date to return information about the currently logged in user. If your API key matches the value of the depreciated apiKey property in the returned user, your API key is old.

If in doubt, we recommend using the POST /api/api-key endpoint (Swagger/ReDoc) to create a new API key.

Mesh Users

If you have any workflows that use a Call Mesh action, your Alloy customer project will need updating with a new API key. We've been reaching out to customers we believe to be affected by this, but if in doubt, please contact Support to request this.

Expected Release Date

26th January 2023 as part of the Alloy v2.43 release.

New Alloy safety limits ๐Ÿ›‘


This is to inform all users that we've recently implemented three safety limits to Alloy’s engine.

These have been put in place to help ensure that the performance, reliability and security of Alloy remains high. Rest assured, these limits have been calculated carefully, so most users will never reach them!

In rare cases where a limit is reached, users will receive a detailed error message to inform them what has happened, so the situation can be avoided in future.

Who will be affected?

These limits affect all users of Alloy but will be unnoticeable by most.


The following limits have been added.

Maximum Background Tasks

The number of background tasks that can be queued per customer project. This has been limited to 100,000 tasks, which is far higher than has ever been reached before.

If the limit is reached, attempting to create a task will fail with this error:

Error Category: ResourceLimited,  Error Code: 1657552956

Maximum Item Size

The size of any item being operated on. This has been limited to 2MB (roughly 420,000 words of text) for optimal resource management.

If the limit is reached, the operation will fail with this error:

Error Category: ItemSizeExceedLimit, Error Code: 1657279454

Maximum Items to Query in Bulk

The total number of items involved with any write operations. While a query may only affect a moderate number of items directly, each item may have child/parent items that need querying too. Therefore, this has been limited to 200,000 items on the Task Executor (75,000 items on the API services).

If the limit is reached, the query will fail with this error:

Error Category: BulkQueryLimitExceeded

Pickers Now Support Search Settings ๐ŸŽ‰


When using the top-right Search panel to find items of a particular design or interface, you can customise how item attributes are searched, the collection(s) to be searched, and how the results are ordered.

However, these search settings currently apply to all designs/interfaces. This isn’t ideal, as what may be optimal for some designs/interfaces may not be optimal for others!

Therefore, as part of our continual efforts to add flexibility and improve consistency within Alloy, we’re making two important changes in this area:

  • Search settings will be saved per design/interface.

  • Search settings will affect item pickers as well as the Search panel.

Who will be affected?

These are broad changes that will affect most Alloy users.


As before, when using the Search panel, you can customise your search settings like so:

  • Select the search box, enter the name of a design/interface and press Enter.

  • In the bottom action bar, select the More icon and choose Search settings.

However, when saving these settings, they will no longer be applied to all designs/interfaces. Instead, they will only be applied to the design/interface that you’re searching in.

This means you can save different search settings for different designs/interfaces, leading to a more efficient searching experience overall.

Item pickers

Search settings will be shared between the Search panel and item pickers, so saving custom settings for a design/interface in one will affect the other.

For example, imagine you’re creating a defect. In Step 2 of the procedure, you’re prompted to select the asset(s) you want to create a defect against. An item picker appears showing items of the Defects Assignable interface.

The items listed by the picker are subject to the same search settings as the Search panel. To access those settings, you can select the new cog icon (outlined in red above).

The orange dot over the icon indicates that custom settings have already been set for the design/interface being searched, which will affect the appearance and order of items shown in the picker.

Expected Release Date

8th December 2022 as part of the Alloy v2.42 release.

Alloy October 2022 Update

This month’s update provides item form improvements, the ability to attach files directly to permit applications, and a brand new map tool! The update took place during the evening of the 27th October. For a full list of changes in v2.41, please visit the Alloy Changelog.

New Measure Tool 📐

You asked for it, you’ve got it!

Alloy has a new Measure tool that can accurately measure the length between two points, the total length between multiple points, and the area of a closed shape.

It’s simple to use – just select the tool and then select two points on the map to draw a line between them. Continue selecting points to draw more lines. The length of each line is calculated and displayed in real-time, as is the total Length displayed in the bottom-left corner.

Double-select the last point to finish your initial drawing. If you do this over the first point, the Area of your closed shape will also be displayed.

You can then adjust your drawing by dragging any of its points, or adding new points along any of its lines.

This new tool will no doubt prove useful across many different service areas and reduces the need to visit sites, saving considerable time, costs and emissions.

Item Form Improvements

We’re continuing to improve the new item forms feature, which makes it possible to customise the form that users fill in when creating or editing items of a particular design/interface (introduced in the Alloy September 2022 Update).

New label property

All item form controls now have a Label property, which lets you set a display name for the control. If left blank, the attribute's name will be used.

New Multiline control

When adding a Text attribute to an item form, you can now choose a Multiline text input control. Unlike the standard Text input control, this new control can display multiple lines of text at once.

When a user selects the field on the form, a large text box will appear for them to write into.

New Super Globals

First, some background information!

We’re gradually improving support for expressions in item forms. An expression takes zero or more inputs, performs one or more logical operations, and produces one output. By utilising expressions, item forms can be context-sensitive and react to user input.

When configuring a control on an item form, you can target any of its properties to the output of a saved expression. This lets a property react to the status of other controls within the item form, e.g. make a read-only control writable if a Checkbox control is checked

Super globals are effectively system-wide variables that can be referenced in expressions. They make it possible for a property to react to the status of many other things in Alloy. For example:

  • details of the current user (e.g. name, username, email address, item ID)
  • details of the current item form (e.g. name, code, whether it’s operating in Create or Edit mode)
  • details of the item being created/edited (e.g. item ID, design name and code, collection, parent item ID)

For a full list, see the Alloy User Guide.

This opens up all sorts of possibilities!

For example, imagine your item form has an Item picker control that displays the lookup list for a Link attribute. Using the power of expressions and super globals, it could now be configured to only list items with the same parent as the item being created/edited by the form. We know this is something many of you have wanted for a while!

While expressions remain developer-focused for now, this is an important part of ongoing efforts to develop the feature. We plan to make expressions available to a wider audience when we release a user-friendly expression builder in the not-too-distant future.

Indicate Required Attributes *️

Previously, when creating/editing an item, Alloy displayed all of the required attributes and hid the others behind a Show Options button. With the introduction of item forms, this behaviour has had to change.

Therefore, Alloy now marks any required attribute with an orange asterisk. This happens automatically, regardless of whether an item form is created for a design/interface or not.

Attachments for Permit Applications📎

For Street Works users, applying for permits is a regular procedure. Permits often require supporting documents and photos. While permits can have file attachments, you could only add them after the permit was created. This was a bit of a hassle!

Therefore, we’ve now added an optional Attachments step to the permit application itself, so you no longer have to spend extra time attaching files afterwards.

New Rounds setting on Alloy Mobile Android

In response to customer feedback, we’ve added a new Go to rounds on login setting to Alloy Mobile on Android.

If enabled, the app will automatically show the Rounds panel after logging in. This happens immediately, so you don't need to wait for the automatic sync to finish (your Rounds will refresh afterwards).

This will be especially useful for vehicle-based users who seek to minimise time spent between tasks.

Changes to the ApplicableTypes endpoints


We recently added several Applicable Type endpoints to the Web API:

Applicable Types define how items of various activity-related designs can link to each other, e.g.

  • Which Asset types can each Job/Inspection/Defect type be linked to?
  • Which Job types can each Job Work Unit type be linked to?

When using the api/applicable-type/applicable-from endpoint, you may receive some unexpected results. Put simply, this is because the current logic is finding links that can be applicable but haven’t explicitly been made applicable.

To improve this, we’re changing how the endpoint behaves. Rather than accepting a list of designs, it will instead accept a list of items. The new logic will be able to use the parent or child items to determine which DoDIs or items are applicable from that item.

This should produce results that are more in line with expectations! However, it will require some breaking changes. 😐

Who will be affected?

These breaking changes will affect anyone who uses the ApplicableTypes endpoints on the Web API.


New Endpoint Addresses

The addresses of the following endpoints will be changing.

List Applicable From Types endpoint

The request for this endpoint (ApplicableTypeFromWebRequestModel) will be changing:

  • The toAll property will be removed.
  • The from property will no longer accept a ApplicableFromItemWebModel (item IDs) and therefore will no longer require a discriminator. It will only accept ApplicableFromDodiWebModel (DoDi codes).
  • The toAllItems required property will be added (to replace toAll). This is an array of item IDs that you wish to check.
  • The filterAttributeCode required property will be added. This specifies the link attribute to find applicable types on. The attribute must be present on all the items provided in toAllItems.

For example, to query which job types can be raised against specific assets, you would provide these values for the aforementioned parameters:

  • ToAllItems = an array of asset item IDs
  • FilterAttributeCode = attributes_tasksAssignableTasks
  • From = designInterfaces_jobs
    (to exclude inspections and other task types)

Additionally, the response model for this endpoint (ApplicableTypeFromWebResponseModel) will also be changing:

  • The NoRestrictions property will be added.  If no results are returned, this boolean explains why. If true, there are no restrictions, which means everything applies. If false, it means that nothing applies.
  • The results can be of type ApplicableFromDodiWebResponseModel or ApplicableFromItemResultWebModel, so these are the new discriminators to use (no more ApplicableItemWebModel).

Importantly, this revised endpoint won’t support finding applicable job types for supplied work unit items. This will be handled by a new endpoint coming in future.

List Applicable To Types endpoint

The response for this endpoint will be changing:

  • The results can only be of type ApplicableToDodiWebResponseModel. Therefore, it will no longer be necessary to supply a discriminator.

Expected Release

8th December 2022 as part of the Alloy v2.42 release.

The documentation available on Swagger and ReDoc will be updated accordingly.

New Coordinate System picker for Imported Geometry ๐ŸŒ


This is a follow-up to a recent post about an issue affecting the import of geometry data in Alloy Web.

The issue was caused by a third-party service (, which provided Alloy with a list of Coordinate Reference Systems (CRS) and the corresponding proj4 strings required for converting the incoming geometry data accordingly. Upon discovering the issue, we quickly issued a temporary workaround.

To avoid this situation repeating in future, we’ve now removed this dependence from Alloy in favour of a curated local list.

Who will be affected?

This change affects all users who use Gateway to import geometry data in Alloy Web.


When configuring an import in Alloy, there are two optional steps in the procedure that involve imported geometry:

  • Attributes – in this step, you can map headers in the incoming data to attributes on the selected design. After selecting a GeoJSON attribute, you can select the Coordinate System field and choose one from the list (see below).

  • Geometry – in this step, you can specify the type of geometry data to be imported. After selecting a Type, you can select the 🔍 icon in the Coordinate System field and choose one from the list (see below). Unlike the previous step, the full proj4 string will appear in the field, so it can be edited if necessary before selecting Done.

The coordinate system will default to WGS84 Lat/Lng if not explicitly set.

If you have any existing imports that include geometry data and have a Status of Configured or Validated, we recommend reconfiguring them. To do this, open the import item, select More in the bottom action bar and choose Reconfigure.

Available Coordinate Systems

We’ve included the most popular coordinate systems to choose from. Any others we should add? Please feel free to contact Support with your suggestions!💡

OSGB36 / British National Grid
+proj=tmerc +lat_0=49 +lon_0=-2 +k=0.9996012717 +x_0=400000 +y_0=-100000 +ellps=airy +towgs84=446.448,-125.157,542.06,0.15,0.247,0.842,-20.489 +units=m +no_defs

WGS84 Metres
+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +wktext  +no_defs

WGS84 Lat/Lng
+proj=longlat +datum=WGS84 +no_defs

NZGD2000 / New Zealand Transverse Mercator
+proj=tmerc +lat_0=0 +lon_0=173 +k=0.9996 +x_0=1600000 +y_0=10000000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs

Expected Release

Due to this new feature’s importance, it was hotfixed into the current Alloy v2.40 release on 17th October 2022.

Job Work Unit Logic in Web API


As part of work to remove limitations to the number of items allowed in operations on the Extended API (, the logic performed when creating, updating and deleting job work units (work items and bill items) will be moved to the Web API (

This work is part of ongoing changes being made to functionality that has historically been available through the Extended API. Similar changes were made to defect logic (August), inspection logic (September) and job logic (September).

Who will be affected?

This change will affect any users who work with job work units in Alloy, as these changes will be introduced on the API used by both the web client and mobile apps.


There have always been two routes to working with job work units:

  • Through the Web API, where job work units are treated like any other item.

  • Through the Extended API, where logic specific to job work units is applied when performing the same operations (e.g. limiting the types of parent a job work unit can have).

However, the way in which this additional logic was applied in the Extended API required a limit on the number of items being operated on, to guard against service degradation. Therefore, we're moving this logic to the Web API, so these limits can be removed in future.

As a result, there will be some changes to the behaviour of the Web API Item endpoints when a job work unit item is operated on.

Linking Jobs and Job Work Units

When creating or editing a job, it isn't possible to manually create links to corresponding job work units (or change an existing links).

This is because linking is handled automatically during other processes:

  • When creating a job work unit, it will be linked to the parent job you specify.

  • When a job work unit is deleted, the link to its parent job will be removed.

  • When a job or job work unit is deep cloned, copies of both the job and job work units are created and linked together.

Job Work Unit constraints

A job work unit must be created with a link to a single parent job and a single work unit. Attempting to create one these will result in a BadRequest Error 1657715843.

Previously, if a job work unit had a custom parent in addition to its parent job, it was possible to clone that custom parent via this endpoint (see ReDoc).

POST /api/item/{id}/clone with cascadeModes set to Deep.

This would result in copies of the custom parent and job work unit being created and linked together. However, the job work unit would be missing the link to its parent job, which wouldn't be included in the clone operation.

This is no longer possible and will produce a BadRequest Error 1596183833 if attempted.

Automatic budget and estimated value

When creating a job work unit, if a budget or estimated value isn’t supplied, values for these will be copied from its linked work unit (if it holds any values for them).

Expected Release Date

8th December 2022 as part of the Alloy v2.42 release

Disabling Alloy accounts


When a staff member leaves an organisation, it’s common practice to disable any IT accounts used by them during their tenure. Currently, disabling an Alloy account requires you to contact our Support team.

However, it will soon be possible for Alloy Admins to disable/enable any account in their organisation!

After a user account has been disabled, the user’s name will remain visible throughout Alloy (e.g. in user lists, in team member lists). However, that user won’t be able to sign into Alloy Web or Alloy Mobile, nor will they be able to start a new session via the API.

Who will be affected?

These changes will affect System Admins who use the Web API to manage their organisation’s user accounts.


A new User endpoint is being added to the Web API:

PUT api/user/{username} with request model CustomerUserEditWebRequestModel

If the enabled property is declared as false, the specified user’s account will become disabled.

The new endpoint’s documentation will be available on Swagger and ReDoc after release.

Expected Release Date

8th December 2022 as part of the Alloy v2.42 release.

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