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"The placeholder '%4' to strFmt is not used in the format string." in D365

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Posted on by Guruprasanna

1,054

Hi All,

I am assigning string to container as shown below.

Container infoMessage;

infoMessage += strFmt("Ledger dimension %1-%2 Total number of lines processed %3 with total calculated interest %4", header.DimensionValues[#one], header.DimensionValues[#two], line.RecId, header.TotalCalcInterestAmount);

I am adding all the messages to the container and after the execution I will display the info messages one by one. in the above line of code I am getting "The placeholder '%4' to strFmt is not used in the format string." BP warning can any one please suggest me how can i solve this?

Thanks in advance.

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Development / Customization / SDK

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Deepak 22 on at

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RE: "The placeholder '%4' to strFmt is not used in the format string." in D365

Use literalStr to validate label strings

The literalStr Function is used to validate a string at compile time. The parameter can either be a hard coded string (in which case, a best practices error for a hard coded string will be thrown) or, as is more often the case, a label ID. The main benefit of using this method is that it validates the label ID passed to it at compile time and throws a best practices error if an invalid label ID is passed to it.

This method is also often used in the contract class, for the parm methods. For example, the parm method can be decorated with SysOperationLabelAttribute attribute which specifies the label for the parameter.

info(literalStr (StrFmt("@USMF95927",stringVar)) // Correct

info(StrFmt("@USMF95927",stringVar)) // Incorrect
Ludwig Reinhard Microsoft Employee on at

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RE: "The placeholder '%4' to strFmt is not used in the format string." in D365

moved to the d365 forum
Dick de Jong 9 on at

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RE: "The placeholder '%4' to strFmt is not used in the format string." in D365

it is real BAD practice to use string concatenation for info messages !!!! if you ever need to translate a message, the sequence of segments / words in sentence can be really different .. it is simply a BP framework bug and still there in 10.0.8 (latest released version)...
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Florian Hopfner 2,451 on at

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RE: "The placeholder '%4' to strFmt is not used in the format string." in D365

Medhi Moalla over in BP Label Error AX 7 posted instructions how you can use the labelc.exe tool to force a regeneration of the label resources .dll. This solved the BP warning BPUnusedStrFmtArgument for me.

Here are his instructions:

Open command line with (admin) privilege

Execute this command :
J:\AosService\PackagesLocalDirectory\bin\labelc.exe -metadata="J:\AosService\PackagesLocalDirectory" -output="J:\AosService\PackagesLocalDirectory\<Package Name>\Resources" -modelmodule="<Package Name>"

Another way to force the regeneration of the label resources .dll is to simply delete it. The next build will recreate them.
Andrew Jones a1x 130 on at

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RE: "The placeholder '%4' to strFmt is not used in the format string." in D365

Not sure if it's helpful, but the BP check only seems to look at en-us label files, so if you have labels that don't exist in that language, then you will get various label-related BP errors, including the one mentioned above about strFmt.
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Fedir Kryvyi 1,026 on at

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RE: "The placeholder '%4' to strFmt is not used in the format string." in D365

It looks like an odd issue, but technically, you can replace strFmt with string concatenation to resolve this.

InfoMessage += strFmt("Ledger dimension %1-%2 ", header.DimensionValues[#one], header.DimensionValues[#two]) + strFmt("Total number of lines processed %1", line.RecId) + strFmt(" with total calculated interest %1", header.TotalCalcInterestAmount).

or you can put this string concatenation inside of another method to make cleaner like

InfoMessage += this.formatString(header.DimensionValues[#one], header.DimensionValues[#two], line.RecId, header.TotalCalcInterestAmount);
nep on at

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RE: "The placeholder '%4' to strFmt is not used in the format string." in D365

I am using Update10 (7.0.4641.35168).

BPSuppressions are my best friend right now :-)
André Arnaud de Cal... 295,305 Super User 2025 Season 1 on at

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RE: "The placeholder '%4' to strFmt is not used in the format string." in D365

Probably there is a bug in the best practice check. What exact platform update are you using?
nep on at

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RE: "The placeholder '%4' to strFmt is not used in the format string." in D365

Hi guruprasanna

You are not alone - I have the exact same issue.

The infolog shows the message perfectly, but BP keeps giving the message "The placeholder '%2' to StrFmt is not used in the format string." I use a label which uses both %1 and %2, but only %2 is "punished" by BP.

The BP Rule is [BPUnusedStrFmtArgument].

Seems pretty strange - I expect BP checker to be false on this for some reason.

Please let me know if you found a solution.
Guruprasanna 1,054 on at

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RE: "The placeholder '%4' to strFmt is not used in the format string." in D365

Hi Sukrut,

Thanks for the reply !

infolog display properly. but best practice setting under my model all the best practice rules are checked. can you please suggest me which all should marked as check or un-check and is their any procedure we follow to set up the best practice rules.

Thanks in advance

Guru