How To Fix C1001 - Format data used from ABAP Dictionary

C1001 - Overview

• Message type: E = Error

• Message class: C1 - Characteristics maintenance messages

• Message number: 001

• Message text: Format data used from ABAP Dictionary

What causes this issue?

You have selected the "table reference" function. The format of the
table field is read from the R/3 Repository.
Any existing formats and allowed values are overwritten with the data
in the table field shown.

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?

Check the descriptions and headings of the characteristic.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C1001 - Format data used from ABAP Dictionary ?

  The SAP error message C1001, which states "Format data used from ABAP Dictionary," typically occurs when there is an issue with the data format or structure defined in the ABAP Dictionary (Data Dictionary). This error can arise in various scenarios, such as when trying to display or process data that does not conform to the expected format.
  Causes:
  
  Data Type Mismatch: The data being processed does not match the expected data type defined in the ABAP Dictionary.
  Field Length Issues: The length of the data being processed exceeds the defined length in the ABAP Dictionary.
  Inconsistent Data: The data in the database may be inconsistent with the definitions in the ABAP Dictionary, possibly due to manual changes or data corruption.
  Changes in Data Dictionary: If there have been recent changes to the data structure (like field additions, deletions, or type changes) without proper adjustments in the code, it can lead to this error.
  Transport Issues: If