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Change type program from M to I

Hi Experts!!

I have a development that was made as an Top Include type Module Pool, so when I try to transport to Prod System it shows the following log message:

Program SAPMZMM002_TOP: Syntax error in line 000029

REPORT/PROGRAM statement missing, or program typeis I (INCLUDE).

So when I try to change the type from M to I the system send me a message "Objects that do not exist for includes will be deleted (text elements, documentation, menus, screens, variants)."

I have never done a change like this one before, so I don't know what is going to happen once I change the type. What is going to happen to the objects that are referenced to the include?

Can you help me with this issue?????


Antonio Piña.



Thank you for explaining. Now I understand the scenario better. I'd be curious to know how the top include program came to be type M since the system will automatically give it type I. Of course, I am assuming the top include was created at the same time as your main program via the "with TOP Include" checkbox/popup. I notice that the program name SAPMZMM002_TOP is not the suggested SAP name MZMM002TOP, which is not a problem since you can rename the top include to whatever name you choose. But since it is not following the normal naming convention then I can only guess that the program type for SAPMZMM002_TOP was also manually changed (maybe during creation?) from the suggested type I to type M. Regardless of how the top include came to get type M instead of the correct type I, the question at hand is whether anything "bad" will happen if you change it now from M to I.

First I need to give a disclaimer and then I'll give you my opinion:

Disclaimer: I have not seen the programs in question and can't really know what objects might be affected (i.e. deleted), so please proceed with caution and certainly make a backup of SAPMZMM002 and SAPMZMM002_TOP by copying the programs before changing the program type.

My opinion: If the program SAPMZMM002_TOP does not have any of the mentioned objects (text elements, documentation, menus, screens, variants) then you should have no issues with changing it from type M to type I. If SAPMZMM002_TOP does have text elements, documentation, menus, screens, or variants then these will be deleted when you change from M to I. In the second case (i.e. it does have one or more of the mentioned objects), I would think your module pool would need to be slightly re-designed to work properly. Again, I will refer you to my disclaimer since I don't want to give you the wrong advice without seeing the entire picture for myself.

Here's the long text from the first message you get when changing from type M to type I (message DS 161):

Program type changed from type M to type I

Message no. DS161


You tried to change the program type to or from Executable program (type 1) or Include program (type I).

This can affect other program attributes, and possibly the entire program structure.

The following attributes only apply to executable programs:

Logical database

Selection screen version

Include programs may not contain the following:

Text elements

User interface elements (screens and menus)



System response

If the previous program type was Executable program, the attributes listed above will be lost when you save.

If the new program type is Include program, text elements, and the other elements listed above, will be deleted when you save.

Best Regards (and best of luck),


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