SAP Message AD376 - Table type change. Data may have been invalidated

Diagnosis
The table type was changed from POOL/CLUSTER to TRANSP. For performancereasons, it was not possible to check automatically for the existenceof data in this case. Therefore, activation was terminated as aprecautionary measure.

Procedure
If the table does not contain data, activation can be initiated withthe 'Force activation' function.
INCLUDE ADIC-UPDATEFORCE
However, if the table contains data, conversion is necessary. The tablecan be converted (that is, the ABAP Dictionary table is activated, thedatabase table adjusted, and existing data converted) with the onlineconversion function.
INCLUDE ADIC-DB-UTILITIES