Message type: E = Error
Message class:  CNV_DMC_SIN_AM - Messages for Business Address Services 
Message number: 206
Message text: &4:Specify PO Box for PO Box postal code
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_DMC_SIN_AM206 with the description "Specify PO Box for PO Box postal code" typically occurs in the context of data migration or data conversion processes, particularly when dealing with postal addresses in the SAP system.
Cause: This error arises when the system expects a PO Box postal code to be associated with a PO Box address, but the required information is either missing or incorrectly formatted. In many cases, this can happen during data migration from legacy systems to SAP, where the address formats may differ or not all required fields are populated.
Solution: To resolve this error, you can take the following steps: Check the Data Source: Review the data being migrated to ensure that all necessary fields for PO Box addresses are correctly populated. Specifically, ensure that: The PO Box number is provided. The corresponding postal code for the PO Box is also specified. Data Mapping: If you are using a data migration
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_DMC_SIN_AM205 & must not contain any gaps
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_DMC_SIN_AM204 & can only contain numbers
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_DMC_SIN_AM207 In &1 there must be a space in position &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_DMC_SIN_AM208 Template for & has length zero
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.