SAP Knowledge Base Article - Public

2823480 - Check Limit of Fields Per Business Object


You are creating a new extension field and when trying to save it, the following error message is displayed: "Cannot create extension field in this UI; Extension Field limit reached; An exception was raised."

Also, if you try to modify the existing fields, like adding new values on list fields as example, you can receive the following message: "Modification of the field properties failed; There has been an exception".


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There is a specific limit of quantity of fields and size per Business Object. The quantity limit of fields is 745 and size of this amount is 15000.


There is no way to change this to a higher value. The suggestion is to analyze the scenario and remove the unused and obsolete fields.

You can have an overview of the fields under Administration work center:

  1. Go to Administrator work center.
  2. Open General Settings.
  3. Go to Adaptation Changes.
  4. And open Extension Field Usage.
  5. There you will see the following information: Business object, number of fields created, allowed  number of fields (remaining fields to create), aggregate length and aggregate length allowed (remaining size).


Limit, of, fields, extension, field, limit, aggregate, length , KBA , AP-RC-UIF , C4C UI Framework , How To


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