Over to @aarong on that. It’s just a slightly altered version of his code, and I assumed there was more of it and InvoiceNum was already a set variable.
Few changes I would do:
I would use UpdateMaster and then you will have access to a built in pre-populated variable ipInvoiceNum, ipInvoiceLine, cTableName, cGroupID
The reason yours does not work probably is that you must be updating InvcDtl for the ttInvcDtlRow to have something populated, if you update a Misc Charge the BPM would only have ttInvcChrg or so.
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Can you example that in the current code?
var FreightTotal = (from invcDtl in Db.InvcDtl
where invcDtl.Company == Session.CompanyID && invcDtl.InvoiceNum == ipInvoiceNum
select invcDtl.DocTotalMiscCharge
).DefaultIfEmpty(0).Sum();
using (var txScope = IceContext.CreateDefaultTransactionScope())
{
foreach (var invcDtl in (from InvcDtlRow in Db.InvcDtl
where InvcDtlRow.Company == Session.CompanyID && InvcDtlRow.InvoiceNum == ipInvoiceNum
select InvcDtlRow).ToList())
{
invcDtl["TotalFreight_c"] = FreightTotal;
}
Db.Validate();
txScope.Complete();
}
This would trigger it on all tables being updated… you could do a wrapper around it and do
// im going to assume I got the table names right
if (cTableName == "InvcMisc" || cTableName == "InvcHead" || cTableName == "InvcDtl")
{
var FreightTotal = (from invcDtl in Db.InvcDtl
where invcDtl.Company == Session.CompanyID && invcDtl.InvoiceNum == ipInvoiceNum
select invcDtl.DocTotalMiscCharge
).DefaultIfEmpty(0).Sum();
using (var txScope = IceContext.CreateDefaultTransactionScope())
{
foreach (var invcDtl in (from InvcDtlRow in Db.InvcDtl
where InvcDtlRow.Company == Session.CompanyID && InvcDtlRow.InvoiceNum == ipInvoiceNum
select InvcDtlRow).ToList())
{
invcDtl["TotalFreight_c"] = FreightTotal;
}
Db.Validate();
txScope.Complete();
}
}
I hope that works… Sometimes I even check for changes in the PRE and then Enable a POST
Order Example
1 Like
they help alot.
Still cannot get the field to update. What am I doing wrong?? 
If I had to guess the last item that stands out is select invcDtl.DocTotalMiscCharge it should be
select invcDtl.DocTotalMiscChrg
You should have also gotten an error, tho.
Hi Haso,
I changed this and it’s still not giving me a value.
have you read this post mate ?
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set what you want from the tttable as a parameter then use it in your condition in the original database table not the tt one
What do you mean?
replace the ttShipDtl by the Database ShipDtl
Got ya 
Sorry this thread has turned to something else I was also working on… I still haven’t been able to calculate that FreightTotal @hkeric.wci
You would have to do a trace… Perhaps GetShipments doesn’t invoke the Update or UpdateMaster (im assuming your creating invoices via GetShipments). I bet if you go to the Invoice add a new Misc Charge and save, it would trigger.
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Still giving me this…
This error is thrown up when they click Mass Shipment on Customer Shipment Entry - Off-topic of the current thread but similar problem.
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Some directives fire just once per call, even though the widgets are still there to allow you to structure the logic as though it’s firing for every record. When you get that combined situation, you get the “more than one record” error, because you’re asking it to do something to one row and it has several to choose from.
Usually, you either have to find a different trigger with the same records, or fall back on custom code and loop through the records in it.
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