For example: XX YY.sldprt, where X=fixed and Y=programmed variable text. DriveWorksXpress adds a space between, but there is no space in the formula: =CONCATENATE("X" ,DOORMATERIAL ,"-",HEIGHT, LENGTH )
I do not see any issue with your formula but try writing it as =CONCATENATE("X", DOORMATERIAL, "-", HEIGHT, LENGTH) (have corrected the spaces though they should not be doing anything).
In case you still finding issue, then you need to upload your DWX project to check OR try replicating the issue on a sample project and share that.
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