How To Fix AD688 - Tab. &: No. of key fields > & (no change possible in type TRANSP)

AD688 - Overview

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 688

• Message text: Tab. &: No. of key fields > & (no change possible in type TRANSP)

What causes this issue?

A transparent table may contain at most 16 key fields. A table with
more than 16 key fields cannot be converted into a transparent table.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

If you want to change the table type, you must first remove fields from
the key.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AD688 - Tab. &: No. of key fields > & (no change possible in type TRANSP) ?

  The SAP error message AD688 indicates that there is an issue with the number of key fields defined for a database table. Specifically, the error message states that the number of key fields exceeds the allowed limit for a transparent table. In SAP, a transparent table can have a maximum of 16 key fields.
  
  Cause:
  The error occurs when you attempt to modify a transparent table (type TRANSP) to add more key fields than the maximum allowed (16). This can happen during the creation or modification of a table in the Data Dictionary (SE11) or when trying to activate a table that has been incorrectly defined.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Key Fields: Check the definition of the table in the Data Dictionary (SE11) and review the key fields that have been defined. Ensure that the total number of key fields does not exceed 16.
  
  
  Reduce Key Fields: If