Message type: E = Error
Message class:  COWIPB - Messages for WIP Batch 
Message number: 163
Message text: WIP batch has successors; not possible to delete
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.
Unfortunately, there isn't any extra information in this error notice.
First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).
Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.
You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.
The SAP error message COWIPB163 indicates that you are trying to delete a Work in Progress (WIP) batch that has successors, which is not allowed. This typically occurs in the context of production orders or WIP management in SAP, where certain batches are linked to other batches or production orders.
Cause: The error occurs because: The WIP batch you are trying to delete has dependent or successor batches that are still active or in use. There may be open production orders or processes that reference the WIP batch. The system enforces integrity rules to prevent the deletion of batches that are still needed for ongoing processes.
Solution: To resolve this error, you can take the following steps: Check for Successors: Use transaction codes like CO03 (Display Production Order) or COHV (Mass Processing of Production Orders) to check if there are any production orders or batches that are dependent on the WIP batch you are trying to delete. Complete or
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
COWIPB162 Assignment of WIP batch cannot be revoked
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
COWIPB161 Assign all WIP batches to an item
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
COWIPB164 Delete WIP batch &1 via the combined order
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
COWIPB165 Delete WIP batch &1 via the original order
What causes this issue?  You have created the WIP batch &V1& via the original order. You must therefore also delete this WIP batch in the orig...
Click on this link to search all SAP messages.