Mass delete unused flow and process builder versions in Salesforce

Many people wonder how to remove inactive versions flow and process builder.

I also had such a problem as the deployment went all over the branch and the versions accumulatedvery quickly especially on the integration environment.

Hope this helps you.

The URL is the address of your org.

Version restriction made to not touch the old versions.

You can upgrade the query as you like. 

New version for removing flaw from the sandbox using an array.
Added a feature: do not delete the last N versions from the active version.
link 

Execute Anonymous Window:

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String soqlQuery = 'Select ID From Flow Where (Status =  \'Obsolete\' OR Status =  \'Draft\') AND VersionNumber > 1';
String orgUrl = URL.getSalesforceBaseUrl().toExternalForm();
HttpRequest flowIdRequest = new HttpRequest();
flowIdRequest.setMethod('GET');
flowIdRequest.setHeader('Authorization', 'Bearer ' + UserInfo.getSessionId());
flowIdRequest.setEndpoint(orgUrl+'/services/data/v50.0/tooling/query?q=SELECT+id,status+FROM+Flow+Where+(+Status+=+\'Obsolete\'+OR+Status+=+\'Draft\'+)+AND+VersionNumber+>+1');
//flowIdRequest.setTimeout(120000);
Http http = new Http();
HttpResponse httpResponse = http.send(flowIdRequest);
List<Object> records = (List<Object>)((Map<String, Object>)JSON.deserializeUntyped(httpResponse.getBody())).get('records');

//get id
String[] ids = new List<String>();
for (Object variable : records) {
    String str = variable.ToString();
    String res = str.substringBefore(', Status');
    res = res.substringAfter('Id=');
    ids.add(res);
}
//delete
HttpRequest flowIdRequestDelete = new HttpRequest();
for (String idFlow : ids) {    
    flowIdRequestDelete.setMethod('DELETE');
    flowIdRequestDelete.setHeader('Authorization', 'Bearer ' + UserInfo.getSessionId());
    flowIdRequestDelete.setEndpoint(orgUrl +'/services/data/v50.0/tooling/sobjects/Flow/'+idFlow);
    Http http = new Http();
    HttpResponse httpResponseDelete = http.send(flowIdRequestDelete);
}
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bash script (using a file)
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#!/bin/bash

org=$1
ver=$2

sfdx force:data:soql:query --query "Select ID From Flow Where (Status =  'Obsolete' OR Status =  'Draft') AND VersionNumber > $ver" --targetusername $org --usetoolingapi --resultformat csv > flowToDelete.csv

num=$(($(cat flowToDelete.csv | wc -l)-1))
numbase=$num
echo $numBase

while read c; do
    if [[ "$c" != "Id" && "$c" != "Your query returned no results." ]]
        then
            sfdx force:data:record:delete --sobjecttype Flow --sobjectid $c --targetusername $org --usetoolingapi
            num=$((num-1))
            echo $num out of $numbase left
    fi
done < flowToDelete.csv

rm flowToDelete.csv
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https://github.com/d2269/SFScripts