长期使用https://api.mch.weixin.qq.com/mmpaymkttransfers/send_coupon接口进行发放立减金，今年年初左右开始出现这个问题，服务商后台立减金库存还有（有3-5个），但依旧调用返回“代金券批次可用预算不足”，导致无法及时发放。

这是刚刚调用遇到的情况，附上日志，一些数据做了修改

[ 2021-07-12T14:50:38+08:00 ] 

[ log ] 发放卡券请求参数:{"coupon_stock_id":15670666,"openid_count":"1","partner_trade_no":"HoT2RR","openid":"dvI8","nonce_str":"yi3nhjzsi"}

[ log ] 发放卡券返回:{"return_code":"SUCCESS","return_msg":[],"appid":"123","mch_id":"123","device_info":[],"nonce_str":"yi3g7bzsi","result_code":"FAIL","err_code":"STOCK_AMOUNT_NOT_ENOUGH","err_code_des":"代金券批次可用预算不足","coupon_stock_id":"15670666","resp_count":"1","success_count":"0","failed_count":"1","openid":"123","ret_code":"FAIL","ret_msg":"代金券批次可用预算不足","partner_trade_no":"MS20210712145038HoT2RR"}

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[ 2021-07-12T14:51:01+08:00 ] 

[ log ] 发放卡券请求参数:{"coupon_stock_id":15670666,"openid_count":"1","partner_trade_no":"01fqnoii","openid":"dvI8","nonce_str":"n8gjlz28jyxq"}

[ log ] 发放卡券返回:{"return_code":"SUCCESS","return_msg":[],"appid":"123","mch_id":"123","device_info":[],"nonce_str":"n8gjlzbq","result_code":"FAIL","err_code":"STOCK_AMOUNT_NOT_ENOUGH","err_code_des":"代金券批次可用预算不足","coupon_stock_id":"15670666","resp_count":"1","success_count":"0","failed_count":"1","openid":"123","ret_code":"FAIL","ret_msg":"代金券批次可用预算不足","partner_trade_no":"MS20210712145101fqnoii"}

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[ 2021-07-12T14:51:27+08:00 ] 

[ log ] 发放卡券请求参数:{"coupon_stock_id":15670666,"openid_count":"1","partner_trade_no":"7Ta87uk","openid":"dvI8","nonce_str":"8p7utyqi"}

[ log ] 发放卡券返回:{"return_code":"SUCCESS","return_msg":[],"appid":"123","mch_id":"123","device_info":[],"nonce_str":"8p7uuryqi","result_code":"FAIL","err_code":"STOCK_AMOUNT_NOT_ENOUGH","err_code_des":"代金券批次可用预算不足","coupon_stock_id":"15670666","resp_count":"1","success_count":"0","failed_count":"1","openid":"123","ret_code":"FAIL","ret_msg":"代金券批次可用预算不足","partner_trade_no":"MS20210712145127Ta87uk"}

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[ 2021-07-12T14:53:19+08:00 ] 

[ log ] 发放卡券请求参数:{"coupon_stock_id":15670666,"openid_count":"1","partner_trade_no":"145319khDZlP","openid":"dvI8","nonce_str":"87n7xh3"}

[ log ] 发放卡券返回:{"return_code":"SUCCESS","return_msg":[],"appid":"123","mch_id":"123","device_info":[],"nonce_str":"87nnc93","result_code":"FAIL","err_code":"STOCK_AMOUNT_NOT_ENOUGH","err_code_des":"代金券批次可用预算不足","coupon_stock_id":"15670666","resp_count":"1","success_count":"0","failed_count":"1","openid":"123","ret_code":"FAIL","ret_msg":"代金券批次可用预算不足","partner_trade_no":"MS20210712145319khDZlP"}

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