BC - CE Integration | Sync Lookup field

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Posted on by JacoB1234

Hi all,

I'm customizing a BC - CE integration, with custom tables and fields. With the Alpgen tool I was able to add all the tables, fields and table-relationships. This works great! However, when I try to create a new Field Mapping, no LookUp fields are displayed (custom or OOB). When I remove the filter, these fields are displayed but when I select one I get the message 'The field must not have a relationship with another table'. How can I add LookUp fields to my integration?

Thanks in advance!

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Dynamics 365 Business Central

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Sohail Ahmed 11,089 Super User 2025 Season 2 on at

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BC - CE Integration | Sync Lookup field

Maybe this will help you.

Lookup fields (custom or OOB) aren’t supported in standard BC–CE field mappings because they’re linked to other tables. That’s why you get the error.

To sync them, use custom AL code or Power Automate to handle the relationship manually.

Mark this as the verified answer if it helps.

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JacoB1234 84 on at

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BC - CE Integration | Sync Lookup field

Thanks for your answer! Do you know how to do it with AL? I've tried to look for examples, but cant seem to find any..

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YUN ZHU 92,766 Super User 2025 Season 2 on at

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BC - CE Integration | Sync Lookup field

Hi, hope the following can give you some hints.

Dynamics 365 Business Central: Customizing an Integration with Microsoft Dataverse (Integrate custom tables)

https://yzhums.com/17065/

Business Central 2024 wave 1 (BC24): Add table and field mappings to existing integration tables (Dataverse)

https://yzhums.com/49260/

Thanks.

ZHU

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Gerardo Rentería Ga... 23,574 Most Valuable Professional on at

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BC - CE Integration | Sync Lookup field

Hi, good day
I hope this can help you, and give you some hints.

Dynamics 365 Business Central and CRM (Sales) - Sync a Custom Field.

Customizing an integration with Microsoft Dataverse - Business Central | Microsoft Learn

Best Regards
Gerardo

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Khushbu Rajvi. 19,160 Super User 2025 Season 2 on at

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BC - CE Integration | Sync Lookup field

Hope this helps: https://learn.microsoft.com/en-us/dynamics365/business-central/admin-how-to-modify-table-mappings-for-synchronization

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