srntemp

### 1) Overview
 The `srntemp` table serves as a temporary transaction repository for **Supplementary Receipt Note (SRN)** line items. It stores granular data for incoming materials, including quantities (received, accepted, rejected), pricing, and discounts. Uniquely, this table also captures non-inventory financial overheads such as Freight, IGST, and Round-off values, typically identified by specific line number ranges (e.g., Line 100+).
 
 ### 2) Column Dictionary
 
 | Column | Type | Nullable | Meaning | Allowed Values | SQL Usage |
 | :--- | :--- | :--- | :--- | :--- | :--- |
 | **index** | integer | NO | Primary Key; Internal row identifier | | PK |
 | **compcode** | string | NO | Company Code | e.g., "DAS" | FK / Filter |
 | **line** | integer | NO | Line sequence number. 1-99 for items; 100+ for taxes/charges | 1, 100, 999 | Sort / Group |
 | **srnno** | number | NO | Supplementary Receipt Note Number | e.g., 54156 | Join / Filter |
 | **Itemname** | string | YES | Description of the item, service, or tax head | e.g., "IGST", "FREIGHT" | Display |
 | **uom** | string | YES | Unit of Measure | NOS, KGS | Conversion |
 | **Make** | string | YES | Manufacturer or Brand name | | Filter |
 | **recqty** | number | YES | Received Quantity | | Calculation |
 | **acptqty** | number | YES | Accepted Quantity | | Calculation |
 | **rejqty** | number | YES | Rejected Quantity | | Calculation |
 | **rate** | number | YES | Unit Price / Rate | | Calculation |
 | **discount** | number | YES | Discount percentage applied to the line | | Calculation |
 | **chqty** | number | YES | Challan (Invoiced) Quantity | | Audit |
 | **amount** | number | YES | Calculated net amount for the line | | Aggregate |
 | **amount1** | number | YES | Secondary/Adjusted amount field | | Aggregate |
 | **oldrate** | number | YES | Previous rate (used for price revision tracking) | | Audit |
 | **olddisc** | number | YES | Previous discount (used for revision tracking) | | Audit |
 
 ### 3) Relationships & Join Map
 
 The `srntemp` table acts as the detail (child) table for SRN transactions. It is frequently joined with header tables and duty breakdown tables to reconstruct a full voucher.
 
 #### Joins (Authoritative via SCHEMA_MAP):
 
 * **srnhdrtemp**: (Likely Join) Joined on `compcode`. Note: While `srnno` is used here, it typically maps to `vouno` or `mrpno` in the header table `srnhdrtemp` to retrieve invoice dates and supplier details.
 * **srnduty**: (Likely Join) Joined on `compcode`. Used to fetch specific duty/tax breakdowns associated with the receipt note.
 * **semidtl**: (Logical Mirror) This table shares nearly identical structure (`line`, `itemname`, `recqty`, `acptqty`, `rate`) and is often used in parallel workflows for semi-finished goods receipts.
 * **UoMMaster**: Joined on `uom` (srntemp) = `PUoM` (UoMMaster) to validate or convert units.