We are working on SAP integration with Appian through RFC. We are using bind() f

shakilahd over 10 years ago

We are working on SAP integration with Appian through RFC. We are using bind() function where we are getting null output. Can someone please help us through the approach of using bind() using the following SAP write function.
= a!sapInvokeWriter(
scsExternalSystemKey: "sapintegrationuser",
usePerUserCredentials: false,
hostname: cons!hostName,
clientnumber: "100",
systemNumber: "00",
bapi: "ZBAPI_OEPRATING_ACCOUNT",
importParameters: {
ACCOUNTDEFNITION: "Holder",
ACCOUNTID: 100,
ACCOUNTNAME: "Appian",
ACCOUNTTYPEID: "A",
ACTIVE: "Y",
ICACCOUNT: 2001,
LINKEDACCOUNT: "Yes",
LINKEDACCOUNTOPID: 1001,
RQST_ID: 500,
TEMPID: 110,
TYPEACCOUNTID: "A"
},
tableParameters: ""
)

...

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0 rajganeshn over 10 years ago

Hi,
You can refer the below link,
forum.appian.com/.../Evaluation_Functions.html
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0 shakilahd over 10 years ago

Hi, we tried as it is, but got the below error.

Expression evaluation error at function a!taskui_taskRejectionReassignment: An error occurred while executing a save: Expression evaluation error : There was an error evaluating the “set” parameter of the “bind” function for variable local!sapCreateWriter. Details: Expression evaluation error in rule 'sap_writer': Rule 'sap_writer' has 0 parameters, but instead passed 1 parameters.
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0 Brett Shomaker
Appian Employee
over 10 years ago

Can you copy in your full bind expression (or provide a link to a gist/pastebin/etc.)? Writers do not return a value, so my hunch is that the get parameter for your bind function is returning null and you are expecting it to return something else. You could use a!sapInvoke as your get parameter and call a BAPI that would request the account you are updating so that you can capture the result of the update. Can you confirm that the account you are trying to update has been updated in SAP?
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0 shakilahd over 10 years ago

Hi,

I used a!sapInvoke and I can able to get the data from SAP, but I'm not able to write a new data or update the existing data using a!sapInvokeWriter.

Could you please let me know what is correct parameters need to be passed to this a!sapInvokeWriter in order to write/ update the data.
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0 Eduardo Fuentes
Appian Employee
over 10 years ago

Why are using this syntax in your rule

rule!SAP_writeOperate(
_
)

if rule!SAP_writeOperate doesn't take any inputs? (see screenshot)
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