Okay, so I ran into this “persistent transfer canceled” thing in Apex today, and let me tell you, it was a bit of a head-scratcher at first. I was working on this batch job, you know, the kind that chugs through a ton of records and does some updates.
I kicked off the batch, and everything seemed fine. I went to grab a coffee, came back, and bam! The job had crapped out with this “persistent transfer canceled” error. I was like, “What the heck does that even mean?”
First thing I did was check the obvious stuff. Did I have any weird triggers firing? Nope. Any validation rules going haywire? Negative. The code itself looked pretty clean, at least to my tired eyes.
Then I started digging into the logs. You know, the usual suspects. The debug logs were a bit of a mess, but I eventually found some entries related to callouts. Aha! I was making a callout to an external system in this batch job.
That external callout！
I did a quick check, I thought my callouts might be the * code was set up to handle callout failures with try-catch blocks, but this error was different. It wasn’t a timeout or a bad response. The transfer itself was being canceled.
Root Cause
I did more research and found a few discussions online where people were experiencing it.I’ll give you the gist:
- My situation,It’s likely an internal Salesforce limit, probably to prevent runaway processes or resource hogs.
- One user has had the same * external system I was calling was taking a long time to respond.
So, I made a few changes. First, I tightened up the timeout on my callout. I figured if the external system was being slow, I didn’t want to wait around forever.
Second, I added some more robust error handling. Instead of just catching exceptions, I specifically looked for this “persistent transfer canceled” error and added some logic to retry the callout a few times, with a bit of a delay in *’s works!
Finally，I re-ran my batch job, fingers crossed, and… it worked! No more canceled transfers. It took a bit longer to run because of the retries, but hey, at least it finished.
So, the moral of the story? If you see “persistent transfer canceled” in Apex, especially with callouts, check your timeouts, and consider adding some retry logic. It might just save you a headache.
