调用EBS标准API的时候，可能会返回一些让人看不懂的错误，比如最近我在开发rcv_transaction_interface的时候，数据卡在接口表里没有过去，但是返回的错误令人费解。
例如如下两个错误就让人费解：
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Error: derive_vendor_rcv_line_qty-098: 1
Cause: A SQL error has occurred in derive_vendor_rcv_line_qty. The SQL error is User-Defined Exception.
Action: Take note of both this error number and the actions you were trying to perform. Contact your system administrator for further assistance.
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RVTSH-189：子例行程序 rvtshiline() 返回的错误
原因：子例行程序 rvtshiline() 返回时出现内部错误。
措施：请记录此错误编号以及您尝试进行的活动。 请与系统管理员联系以寻求帮助
Concurrent program RVCTP returned error
Cause: RVCTP encountered an internal error. Parameters: RVCTP,IMMEDIATE,4686,
Action: Note both this error number and the actions you are trying to perform. Contact your system admi
RVTBM-008: Subroutine rvtbm_immediate_mngr() returned error
Cause: Subroutine rvtbm_immediate_mngr() returned an internal error.
Action: Note this error number and the actions you are trying to perform. Contact your syste
RVTBM-120: Subroutine rvtptcontrol() returned error
Cause: Subroutine rvtptcontrol() returned an internal error.
Action: Note this error number and the actions you are trying to perform. Contact your system administrator
Concurrent Manager encountered an error while attempting to start your immediate concurrent program RVCTP. Routine &ROUTINE received a return code of failure.
Contact your support representative.
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那么我们就可以利用EBS标准的Debug方法来轻易的追踪到错误原因：
******************
首先，我们需要在admin职责下设置一些Profile:
----------------------------------------------
a. RCV: Debug Mode=Yes
b. FND: Debug Log Enabled=Yes
c. FND: Debug Log Level=Statement
d. FND: Debug Log Module=po%
----------------------------------------------
a. TP:INV Transaction processing mode=On-line
b. INV: Debug Trace=Yes
c. INV: Debug Level=11
d. INV: Debug file (Including the complete path)=<valid directory path
----------------------------------------------
a. OM: Debug Level = 5
b. OM: Debug Log Directory = <valid directory path>
然后可以用如下SQL查看Debug信息：
select to_char(timestamp, 'DD-MON-YY HH24:MI:SS'),
message_text,
module,
log_sequence
from fnd_log_messages
WHERE trunc(timestamp) = trunc(sysdate)
AND process_id = (SELECT os_process_id
FROM fnd_concurrent_requests
WHERE request_id = &p_request_id)
AND module not like 'fnd%'
ORDER BY log_sequence;
*********************************************
例如错误：Error: derive_vendor_rcv_line_qty-098的Debug信息如下：
| Match Option:RProfile value ALLOW_RATE_OVERRIDE_FOR_USER_RATE_TYPE:N | po.plsql.RCV_ROI_TRANSACTION.RCV_ROI_TRANSACTION.4731 |
| No of Distributions:1:: Rate and Rate_date in po distributions7.468200216771979::16-JAN-08 | po.plsql.RCV_ROI_TRANSACTION.RCV_ROI_TRANSACTION.4757 |
| Exception in derive_vendor_rcv_line_qty | po.plsql.RCV_ROI_TRANSACTION.RCV_ROI_TRANSACTION.5011 |
由此，我们可以看到在Package：RCV_ROI_TRANSACTION中，4757行 - 5011行之间发生错误，引发Exception报错：Error: derive_vendor_rcv_line_qty-098，那么此错误就轻易被解决掉了。