Message type: E = Error
Message class:  CNV_PE_TPM - Messages within transport management functions 
Message number: 054
Message text: Upload stopped because of namespace differencies
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 CNV_PE_TPM054 indicates that an upload process has been halted due to namespace differences. This typically occurs during data migration or transformation processes, particularly when using SAP's data migration tools or during system conversions.
Cause: The error is usually caused by discrepancies between the namespaces of the source and target systems. This can happen in scenarios such as: Different Naming Conventions: The source system may use a different namespace for certain objects (like tables, fields, or structures) compared to the target system. Custom Development: If there are custom developments in the source system that do not exist in the target system, this can lead to namespace conflicts. Transport Issues: If certain objects were not transported correctly or are missing in the target system, it can lead to this error.
Solution: To resolve the CNV_PE_TPM054 error, you can follow these steps: Check Namespace Consistency: Verify that the namespaces in the source and target systems are consistent. This
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_PE_TPM053 Template include &1 is not found in the system
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_PE_TPM052 Transformation rule &1 is not included (namespace)
What causes this issue?  The transformation rule with &V1& (ID &V2&) is <ZH>not </>included due to a namespace conflictSys...
CNV_PE_TPM055 Wrong file format (&1 is missing)
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_PE_TPM056 Wrong line format (error at line &1)
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.