Message type: E = Error
Message class:  CNVHCM_PRESEL - TDMS4HCM: Messages for Object Selection 
Message number: 106
Message text: Specify an existing selection ID for step &1
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 CNVHCM_PRESEL106 indicates that a selection ID must be specified for a particular step in a process, typically related to data migration or conversion activities in the SAP system. This error is often encountered in the context of the SAP HCM (Human Capital Management) module, particularly during the execution of a program that requires a predefined selection ID.
Cause: The error occurs when: A required selection ID is not provided or is missing in the configuration or execution of a program. The selection ID specified does not exist in the system. There may be a misconfiguration in the data migration or conversion settings.
Solution: To resolve the error, you can take the following steps: Check Selection ID: Ensure that you have specified a valid and existing selection ID for the step indicated in the error message. You can do this by: Navigating to the relevant transaction or program where the selection ID is required. Verifying that the
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNVHCM_PRESEL105 Specify valid expression for infotype &1 in restrictions for step &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNVHCM_PRESEL104 Refer to tables for infotype &1 in restrictions for step &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNVHCM_PRESEL107 Object type &1 in step &2 does not exist; specify an existing object type
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNVHCM_PRESEL108 Specify IDs for object type &1 in step &2
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.